Improvement in feed-water heaters for steam-boilers



ZSheets---Sheet 1.' ROBERT BERRYMAN.

lmlprovernent in Feed Water Heaters for Steam Boilers.

N0v 115,682. PatentedJune6,18'7l.

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IRBERT BERRYMAN.

Improvement in Feed Water Heaters for Steam Boilers.

NO. 115,582. Patentedjune 6,1871.

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ROBERT BRRYMAN, OF HARTFORD, CONEG'ICT.

IMPROVEMENT IN FEED-WATER HTERS FOR STEAM-BOlLERS.

Specification forming part of Letters Patent No. 115,682, dated' June 6,1871.

To all persons to rwhom these presents may come: Be it known that I,ROBERT BERRYMAN, of the city and county of Hartford and State ofConnecticut, have invented a new and useful or Improved Automatic Feederand Water- Heater for a Steam-Boiler; and do hereby deelare the same tobe :fully described in the following specification and represented inthe accompanying drawing, of Which- Figure 1 is a front elevation, Fig.2 a top view, and Fig. 3 a vertical section of it.

The apparatus will heat the water nearly to boiling temperature. Itoperates to keep the exhaust steam out of contact with the feedwater.

Owing to the amount of sulphuric acid in the preparation of the greaseor tallow employed for the lubrication of the pistons of engines, muchof said acid is liable to be carried into the'eed-water heater by theexhaust steam, and from thence it will pass into the boiler to theinjury of the latter. The importance of keeping the exhaust steam, whileused, to heat the feed-water out of contact therewith, will be easilyperceived.

In the drawing, A denotes a vertical drum or vessel provided with apipe, B, extending through and up from its bottom in manner as shown,such pipe being to receive the exhaust steam from a steam-engine. Abovethe top of the pipe the vessel A is furnished with a series ofprojections, o a, to support the deposit-extractor C, which is aninverted hollow vessel or cone having a series of pipes, D D, leadingout of and downward from it, as shown. There is a space, b', around theouter edge of the said extractor, and between such and the in-` nerperiphery of the vessel A. With the deposit-extractor so constructed theexhaust steam, on entering the vessel A, will impinge against the bottomof the extractor, and thence flow up around and over the extractor andthe pipes D, by which the feed-water that may tlow into the extractor bya pipe, b, will be discharged into the lower part of the vessel A. Thepipe b opens near the bottom of the conical receiver, and is to proceedfrom a tank or source of supply. This opening of the discharging end ofthe pipe b into the lower part of the receiver C causes the water, at alow temperature, to be brought in contact with the part of the receiverwhich is directly over that on which the exhaust steam impinges onentering the vessel A. The heated water rising in the receiver willescape therefrom through the discharge-pipes D. The receiver will bekept nearly iilled with water, which will deposit much of its sedimentin the receiver. Such sediment may be removed, as occasion may require,through ahand-hole in the top of the vessel A, such hole being providedwith a cover,.o. During its passage through the vessel A and out of aneduction-pipe, d, in the top thereof, the exhaust steani'passes over thesurface of the water in the conical receiver, but will be kept out ofcontact therewith by the stratum of air that will gather and remain inthe upper part of such receiver, and constitutes an elastic cushionbetween the steam and the water. The conical receiver, having thepressure equal on its opposite surfaces, may be made of thin and lightmaterial. To prevent the feed-water from overiiowing into theexhaust-pipe, I combine with the vessel A an automatic feed-regulator,B, by which power is derived to open andclose the valve of a cock, q,arranged in the feed-pipe b, thereby keeping the water at a constantlevel on the vessel A. This automatic feed-regulator is substantiallylike one I have described in an application for a patent recently filedby me, and may be thus explained. E is a hollow drum, which has pipes fg leadingfrom it into thevessel A, and crossing and opening into astandpipe, F, that leads down from the supply-pipe b, and is providedwith a stop-cock, It, arranged just below the feed-pipe, as shown.Within the case or drum E is a hollow bucket or vessel, G, which isclosed except in having one or more small apertures leading out of it atits side. This vessel is pivoted to an arm, i, arranged within the case,and projected from a rock-shaft, k, extended out of the case and througha stuffing-box, l. Another arm, m, provided with an adjustable weight,mf, extends from the rock-shaft in manner as ex hibited. Aconnecting-rod, n, is pivoted'to the arm m, and a lever, o, applied tothe stem p of a balanced valve-cock, q, arranged in the supply-pipe t.While the water in the vessel A may be at its proper level the drum Ewill be filled with water, which will also lill the vessel G. As thewater may fall in the vessel A, so will it fall in the vessel E. Theconse- 2 masse quence oi' such a fall of the Water will -be that theVessel Gr will fall by the 'Weight of Water in it, and thereby cause theValve of the cock g to be moved to admit a greater supply of Water tothe Vessel A.

The other portions of the drawing show a feeding apparatusv notnecessarily connected with the present invention, and therefore notherein particularly described, a separate application for a patenthaving been made therefor.

Should cool vWater be needed in the feeding apparatus to facilitatecondensation of the steam therein, the stop-cock le may be opened toadmit a small quantity in the Vessel A,`

thence to oW into the feeding apparatus.

In the operation of the vessel Aand the extractor, the exhaust steam iskept from contact with theA feed-Water, so that the grease and itsacidsare carried oft' With the steam and do not find their Way to theboiler.

2. The combination of the automatic feed! I regulator herein firstdescribed (provided or not with the stand-pipe and the cock thereof, asexplained) with the induction-pipe b, the vessel A, its exhaust-steampipes, and the ex= tractor G and its pipe or pipes D, all beingarranged, combined, and constructed so as to operate substantially inmanner as set forth.

ROBERT BERRYMAN.

W' nessesz R. H. EDDY, J. R. SNOW.

